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A mass m moves in a circle on a smooth horizontal plane with velocity v₀ at a radius R₀. The mass is attached to string which passes through a smooth hole in the plane as shown.
The tension in the string is increased gradually and finally m moves in a circle of radius R₀/2. The final value of the kinetic energy is
Options
(a) 1/4 mv₀²
(b) 2 mv₀²
(c) 1/2 mv₀²
(d) mv₀²
Correct Answer:
2 mv₀²
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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(73)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Calculate the focal length of a reading glass of a person, if the distance
- There is a ring of radius r having linear charge densityλ and rotating with a uniform
- Work of 3.0×10⁻⁴ joule is required to be done in increasing the size of a soap film
- If the velocity of sound in air is 350 m/s, thent he fundamental frequency
- A nucleus ᴢXᴬ emits an α- particle with velocity v. The recoil speed of the daughter
Topics: Motion of system of Particles and Rigid Body (73)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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